This product can expose you to chemicals, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information on this product, please refer to the SDS file. For more information on Prop 65, please visit
www.p65warnings.ca.gov.
The MicroBlock Rubber Base provides additional friction and control. This accessory is compatible with all GRS MicroBlocks. Overall diameter approximately 114.3mm (4.5"). Inside opening is 63.5mm (2.5"). Weighs .25lbs. Made in USA.